In his apostolic letter Sublimitas et Miseria Hominis ("The Grandeur and Misery of Man"), Pope Francis pays homage to Blaise Pascal on the four-hundredth anniversary of his birth. Pascal (1623-1662) was a French mathematician, physicist, philosopher, and Catholic writer who was a "tireless seeker of the truth," according to Pope Francis. Pascal is credited with many scientific developments and inventions, including one of the...